....... And I believe you have 10 working days to submit it for a free retest on the failed repairs if taken away from the test centre ( I think) after which time it has to be retested at the relevant test price.
"If the vehicle is left at the MOT testing station for repair and is retested before the end of 10 working days following the day of failure, then only a partial retest is needed for which no fee is charged.
If the vehicle is removed from the testing station for repair and returned for retest within 10 working days following the day of failure, then only a partial retest is needed and a partial retest fee is charged.
In any other case a full retest is required and the full MOT test fee will be charged.
Only one free partial retest is permissable per full examination."
But many MOT test stations wave retest fees
free partial retest is limited to what it fails on, if it fails on brakes or prescribed area excessive corrosion ,suspension etc then a fee applies

full test fee is £54.85 partial retest fee is half the full fee £27.43 so hardly worth arguing over

nothing to stop you taking the car for a pre MOT test ,or getting it checked over if you are unsure ,as long as the NT does not enter the test on the VTS device ,it's not an MOT
BUT ,as johnnydog states ,if a pre MOT check over flags serious problems and the vehicle is unsafe then best NOT drive it round for months

the flip side of that is leave it till the MOT is due and drive round blissfully unaware
